Callosum

Inference Performance & Deployment - Member of Technical Staff

Callosum
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4 months ago
London, United KingdomSenior
H1B sponsor

Responsibilities

  • Run experiments self-hosting models across cloud instances and on-premises hardware configurations.
  • Develop reproducible and measurable deployment patterns optimized for latency, throughput, and cost.
  • Improve orchestration and routing software, including caching, request scheduling, batching, and resource allocation.
  • Integrate accelerator support, inference engine features, and infrastructure upgrades while identifying bottlenecks and required capabilities.
  • Build and maintain benchmarking harnesses, regression suites, and performance dashboards.
  • Translate performance data into actionable feedback and guide production-readiness and stack-optimization decisions.

Requirements

  • Experience deploying and benchmarking large-model inference in production or production-equivalent environments.
  • Familiarity with multi-node GPU deployments and associated networking and communication stacks.
  • Strong end-to-end performance characterization skills, including isolating bottlenecks in networks, runtimes, memory subsystems, or models.
  • Familiarity with serving frameworks such as Dynamo, Triton Inference Server, or similar orchestration layers.
  • Clear communication skills and the ability to turn performance data into prioritized feedback.
  • A disciplined and systematic approach to reproducible deployment, measurement methodology, and controlled comparisons.

Benefits

  • Competitive salary determined by skills and experience.
  • Equity and ownership.
  • Private healthcare.
  • Visa sponsorship and relocation benefits.
  • In-person work at the London office with provided tools, workspace, and setup.

Categories

Callosum

About Callosum

11-50 employees
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